Pith Number

pith:QUFRWDWJ

pith:2019:QUFRWDWJPBM6R5ICCGJOPYESGA

not attested not anchored not stored refs pending

Synthetic spectra of energetic core-collapse supernovae and the early spectra of SN 2007bi and SN 1999as

Masaomi Tanaka, Paolo A. Mazzali, Takashi J. Moriya

arxiv:1901.07628 v2 · 2019-01-22 · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QUFRWDWJPBM6R5ICCGJOPYESGA}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:53:41.147132Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

850b1b0ec97859e8f5021192e7e092301a7fe3b48c9b119bd01f54c14480a487

Aliases

arxiv: 1901.07628 · arxiv_version: 1901.07628v2 · doi: 10.48550/arxiv.1901.07628 · pith_short_12: QUFRWDWJPBM6 · pith_short_16: QUFRWDWJPBM6R5IC · pith_short_8: QUFRWDWJ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/QUFRWDWJPBM6R5ICCGJOPYESGA \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 850b1b0ec97859e8f5021192e7e092301a7fe3b48c9b119bd01f54c14480a487

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dbeb3bb5d062ed6b0699a20f0dcae7363fd1f1f3268fbe24096784854b59fbaa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-01-22T22:22:03Z",
    "title_canon_sha256": "d0f9b56a9b392674c9c4045505947bc3cc3ed9c7e6b96070055f263a98c10205"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.07628",
    "kind": "arxiv",
    "version": 2
  }
}